Patent GB-102952-A (GB)
Title: Improvements in or relating to Machines for Making Battery Cups and in the Methods of Manufacture.
Inventor: CASELLA SECONDO LOUIS
IPC: H01M4/12
Filed: 1916-12-14
Abstract: 102,952. Casella, S. L. Dec. 23, 1915, [Convention date]. Hollow-ware. -- Zinc battery cups are made from flat blanks by bendiug two opposite edges in the same direction to a curve sharper than the final curvature of the body, bending to a cylindrical form in two stages, soldering the lapped edges, and inserting and soldering a bottom-piece. The flat blanks may be cut by a blade 44, Fig. 11, carried in a head 41, from a strip 1, which is fed between guides 10, 7 and under spring holders 9, 6 by spring rollers 3 intermittently rotated through Geneva stop gears 18, 19, Fig. 1, from the main shaft 26. A lever 31 rests on the strip between the guides 10, and whem the strip fails, the lever withdraws a pawl 33, Fig. 18, and the released spring bolt 34 engages and withdraws the spring clutch member 37 from the driving-pulley 36, thus stopping the machine. This clutch may also be operated by a hand-lever 39, which, in one direction, trips the pawl 33, and in the other engages a pin 40 on the bolt 34. The blank is then moved sideways by pawls 48, Fig. 9, on bars 49 reciprocated by a lever 73, Fig. 1, spring 76, and cam 72 on the main shaft 26. The blank is then bent between dies 45, 50, Fig. 11, carried by the head 41 and bars 49 respectively, and then, after another feed, by dies 46, 53, Fig. 13, carried by the head 41 and levers 55 respectively, around the horn 51. The head 41 is reciprocated by an eccentric 42, Fig. 9, on the shaft 26, and carries a block 79 adapted to engage a stop 80, if this is not withdrawn by the arm. 84 of the feed-bars 49 as they reach their retired position, thus stopping the head 41 and preventing damage, while the driving-belt slips. The levers 55, Fig. 13, are operated by cams 56 on the shaft 17, which is driven through gears 30, 27, Figs. 1 and 9, from the shaft 26. The bodies 62 are then fed along the horn 51 by pawls 63 on extensions 64 of the bars 49, and the lapped part is cleaned, while moving, by an acid wheel 85, Fig. 13, driven through a belt 88, Fig. 9, and soldered, while at rest, by a roller 90, Fig. 14, driven through gears 97, shaft 99, and bevels 100, Fig. 13, and intermittently raised by a spring and the cam 95<a>. The roller 90 is partly immersed in a heated bath 92 of solder. While cooling, the bodies 62 are fed between spring and other guides 101 to keep the joint closed, till it projects slightly beyond the end of the horn 51, being retained by the spring-pressed pawl 71, Fig. 7. Bottom blanks 106 are then fed from a shoot 107 by a slide 113 operated by the cam 111, which inserts a blank at an angle within the end of the body. A plunger 116 operated by a cam 118 straightens the bottom in the body 62, which it forces back slightly on the horn 51. At the next feed, the body falls down a shoot 131. The bodies 62, as they are fed along the horn 51, lift the pawl 71, and this movement, acting through the lever 136, Fig. 1, rod 137, and a gate 138, allows the lowest body in the shoot 131 to advance to a position in front of a plunger 140, which is actuated by a spring 144 and cam 145 to push the body on to one of the divided spring spindles 142 which are carried by the turret 143. The spindles are continuously rotated on their axes by bevel-gears from the shaft 146, and the turret is intermittently rotated and held by a bowl 157, Fig. 7, engaging recesses therein and a spring pawl 151, which is withdrawn by a cam 156. In the next positions of the turret, an acid pad 162 and a soldering-iron 167 are applied to the bodies, which are then cooled, if desired, by air blast 178, Fig. 1, and removed from the spindles by a spring fork 184 operated by the cam 145, which throws them into a shoot 186. If there is no body in position to receive a bottom-piece, a weighted lever 128, Fig. 7, falls into a recess in the horn 51, the other end of the lever engaging at the same time a recess in the slide 113 and thus preventing a bottom from being fed.